Add your IGES file
Drop one or more .iges files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
IGES to GLTF
Converting .iges CAD geometry to .gltf triangulates exact engineering surfaces into a mesh that printers and viewers understand. Free, private, and validated — the file never leaves your browser.
100% private for supported formats
Runs on your deviceConvert supported files
Drop IGES files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting IGES model to glTF mesh
Converting .iges CAD geometry to .gltf triangulates exact engineering surfaces into a mesh that printers and viewers understand. IGES, written to disk as .iges, is the Initial Graphics Exchange Specification — the first ANSI-standard neutral format for passing CAD geometry between systems from different vendors. An .iges file describes curves, surfaces, and annotation as numbered entities in a fixed-width text layout inherited from punch cards.
A .gltf file is the JSON form of Khronos glTF 2.0: it describes nodes, meshes, accessors, and buffer references in text, often pairing with external .bin buffers or embedding them as data: URIs. It is the editable, inspectable sibling of binary .glb. For this route the practical draw is human-readable scene description and same data model as GLB, so round-trips are straightforward — balanced against external buffer URIs make a lone .gltf file incomplete, which is worth knowing before you commit a large batch.
Why convert IGES to GLTF?
The practical trigger for this conversion is usually a mismatch: with .iges, frozen since 1996, with weak solids and essentially no assembly structure. Switching to .gltf buys you human-readable scene description, which is why it is the better fit for inspecting or hand-editing mesh package structure. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
IGES vs GLTF at a glance
| Aspect | IGES model (.iges) | glTF mesh (.gltf) |
|---|---|---|
| Format type | Vector — resolution-independent geometry instead of pixels | Vector — resolution-independent geometry instead of pixels |
| How it stores data | text files in 80-column records divided into Start, Global, Directory Entry, Parameter Data, and Terminate sections | uTF-8 JSON with required asset.version 2.0 and optional scenes, nodes, meshes, accessors, bufferViews, and buffers |
| Strongest at | recovering geometry from legacy aerospace and automotive archives | inspecting or hand-editing mesh package structure |
| Weak spot | frozen since 1996, with weak solids and essentially no assembly structure | external buffer URIs make a lone .gltf file incomplete |
| Metadata | the Global section carries the sending system, author, organization, units, and creation date, but per-part metadata is minimal | copyright and generator strings sit under asset; application-specific data is commonly stored in extras |
Pick GLTF as the output
Select .gltf in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if GLTF is selectable, the route is real and validated.
Convert on your device
Press Convert. Open CASCADE compiled to WebAssembly triangulates the exact CAD geometry into a mesh inside your browser.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid GLTF file. Outputs keep the original filename with the .gltf extension.
IGES to GLTF questions, answered
Will converting IGES to GLTF lose quality?
Since iges is vector-oriented and gltf is vector-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .gltf itself requires.
Is it private to convert IGES files here?
Yes — the .iges file is processed inside your browser tab and never uploaded. Open CASCADE compiled to WebAssembly triangulates the exact CAD geometry into a mesh inside your browser. Close the tab and the file is gone from memory.
Where will the GLTF file work?
The same ecosystem that reads .glb generally reads .gltf, provided referenced buffers resolve. Browser viewers, Blender, and engine importers expect either embedded data URIs or co-located .bin files.
Will the GLTF file be bigger or smaller than my IGES?
It depends on the content: uTF-8 JSON with required asset.version 2.0 and optional scenes, nodes, meshes, accessors, bufferViews, and buffers. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my IGES file?
In .iges, the Global section carries the sending system, author, organization, units, and creation date, but per-part metadata is minimal. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.